hex.glm

Class GLMUtils

java.lang.Object

hex.glm.GLMUtils

public class GLMUtils
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
GLMUtils()

Method Summary

Modifier and Type	Method and Description
static void	addOneRow2ScoringHistory(water.util.TwoDimTable glmSc1, water.util.TwoDimTable earlyStopSc2, int glmColSize, int earlyStopColSize, int glmRowIndex, int earlyStopRowIndex, int rowIndex, boolean addGlmSC, boolean addEarlyStopSC, java.util.List<java.lang.Integer> earlyStopColIndices, water.util.TwoDimTable combined, int overlapSize)
static double	calSmoothNess(double[][] beta, double[][][] penaltyMatrix, int[][] gamColIndices)
static double	calSmoothNess(double[] beta, double[][][] penaltyMatrix, int[][] gamColIndices)
static water.util.TwoDimTable	combineScoringHistory(water.util.TwoDimTable glmSc1, water.util.TwoDimTable earlyStopSc2)
static water.util.TwoDimTable	combineTableContents(water.util.TwoDimTable glmSc1, water.util.TwoDimTable earlyStopSc2, water.util.TwoDimTable combined, java.util.List<java.lang.Integer> earlyStopColIndices, int indexOfIter, int indexOfIterEarlyStop, int overlapSize)
static GLM.GLMGradientInfo	copyGInfo(GLM.GLMGradientInfo ginfo)
static int[][]	extractAdaptedFrameIndices(water.fvec.Frame adaptFrame, java.lang.String[][] gamColnames, int numOffset) From the gamColnames, this method attempts to translate to the column indices in adaptFrame.
static java.lang.String[]	generateRowHeaders(water.util.TwoDimTable glmSc1, water.util.TwoDimTable earlyStopSc2, int glmIterIndex, int earlyStopIterIndex)
static void	updateGradGam(double[] gradient, double[][][] penalty_mat, int[][] gamBetaIndices, double[] beta, int[] activeCols)
static void	updateGradGamMultinomial(double[][] gradient, double[][][] penaltyMat, int[][] gamBetaIndices, double[][] beta)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GLMUtils

public GLMUtils()

Method Detail

extractAdaptedFrameIndices

public static int[][] extractAdaptedFrameIndices(water.fvec.Frame adaptFrame,
                                                 java.lang.String[][] gamColnames,
                                                 int numOffset)

From the gamColnames, this method attempts to translate to the column indices in adaptFrame.

Parameters:

adaptFrame -

gamColnames -

Returns:

copyGInfo

public static GLM.GLMGradientInfo copyGInfo(GLM.GLMGradientInfo ginfo)

combineScoringHistory

public static water.util.TwoDimTable combineScoringHistory(water.util.TwoDimTable glmSc1,
                                                           water.util.TwoDimTable earlyStopSc2)

generateRowHeaders

public static java.lang.String[] generateRowHeaders(water.util.TwoDimTable glmSc1,
                                                    water.util.TwoDimTable earlyStopSc2,
                                                    int glmIterIndex,
                                                    int earlyStopIterIndex)

combineTableContents

public static water.util.TwoDimTable combineTableContents(water.util.TwoDimTable glmSc1,
                                                          water.util.TwoDimTable earlyStopSc2,
                                                          water.util.TwoDimTable combined,
                                                          java.util.List<java.lang.Integer> earlyStopColIndices,
                                                          int indexOfIter,
                                                          int indexOfIterEarlyStop,
                                                          int overlapSize)

addOneRow2ScoringHistory

public static void addOneRow2ScoringHistory(water.util.TwoDimTable glmSc1,
                                            water.util.TwoDimTable earlyStopSc2,
                                            int glmColSize,
                                            int earlyStopColSize,
                                            int glmRowIndex,
                                            int earlyStopRowIndex,
                                            int rowIndex,
                                            boolean addGlmSC,
                                            boolean addEarlyStopSC,
                                            java.util.List<java.lang.Integer> earlyStopColIndices,
                                            water.util.TwoDimTable combined,
                                            int overlapSize)

updateGradGam

public static void updateGradGam(double[] gradient,
                                 double[][][] penalty_mat,
                                 int[][] gamBetaIndices,
                                 double[] beta,
                                 int[] activeCols)

updateGradGamMultinomial

public static void updateGradGamMultinomial(double[][] gradient,
                                            double[][][] penaltyMat,
                                            int[][] gamBetaIndices,
                                            double[][] beta)

calSmoothNess

public static double calSmoothNess(double[] beta,
                                   double[][][] penaltyMatrix,
                                   int[][] gamColIndices)

calSmoothNess

public static double calSmoothNess(double[][] beta,
                                   double[][][] penaltyMatrix,
                                   int[][] gamColIndices)

Parameters:

beta - multinomial number of class by number of predictors

penaltyMatrix -

gamColIndices -

Returns: